6. NORMAL GAIN ADJUSTMENT
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Corrective action example
Driver command start
error
One-touch tuning was attempted to start in
the driver command method under the
following speed condition.
Servo motor speed: 20 r/min (mm/s) or higher
Execute the one-touch tuning in the driver
command method while the servo motor is
stopped.
Driver command
generation error
1. One-touch tuning was executed in the
driver command method when the
permissible travel distance is set to 100
pulses or less in the encoder pulse unit, or
the distance is set not to increase the
servo motor speed to 150 r/min (mm/s)
(50 r/min for direct drive motor) or higher
at the time of load to motor inertia ratio
estimation.
Set a permissible travel distance to 100
pulses or more in the encoder pulse unit, or a
distance so as to increase the servo motor
speed to 150 r/min (mm/s) (50 r/min for direct
drive motor) or higher at the time of load to
motor inertia ratio estimation, and then
execute the one-touch tuning. Set a
permissible travel distance to four or more
revolutions as a guide value.
Load to motor inertia ratio will be estimated
when "0000" or "0001" is set in [Pr. PA08
Auto tuning mode] at the start of one-touch
tuning.
If the permissible travel distance is short and
the servo motor speed cannot be increased
to 150 r/min (mm/s) (50 r/min for direct drive
motor) or higher, select "Auto tuning mode 2
(_ _ _ 2)", "Manual mode (_ _ _ 3)", or "2 gain
adjustment mode 2 (_ _ _ 4)" of "Gain
adjustment mode selection" in [Pr. PA08].
2. The torque limit has been set to 0.
Set the torque limit value to greater than 0.
EM2, LSP, and LSN were turned off during
one-touch tuning in the driver command
method.
Review the one-touch tuning start position
and permissible travel distance for the driver
command method.
After ensuring safety, turn on EM2, LSP, and
LSN.
Parameters for manufacturer setting have
been changed.
Return the parameters for manufacturer
setting to the initial values.
One-touch tuning was attempted to start in
the driver command method during alarm or
warning.
Alarm or warning occurred during one-touch
tuning by the driver command method.
Start one-touch tuning when no alarm or
warning occurs.
Prevent alarm or warning from occurring
during one-touch tuning.
One-touch tuning
disabled
"One-touch tuning function selection" in [Pr.
PA21] is "Disabled (_ _ _ 0)".
Select "Enabled (_ _ _ 1)".
(f) If an alarm occurs
If an alarm occurs during the one-touch tuning, the tuning will be forcibly terminated. Remove the
cause of the alarm and execute one-touch tuning again. When executing one-touch tuning in the
driver command method again, return the moving part to the tuning start position.
(g) If a warning occurs
If a warning which continues the motor driving occurs during one-touch tuning by the user command
method, the tuning will be continued. If a warning which does not continue the motor driving occurs
during the tuning, one-touch tuning will be stopped.
One-touch tuning will be stopped when warning occurs during one-touch tuning by the driver
command method regardless of the warning type. Remove the cause of the warning, and return the
moving part to the tuning start position. Then, execute the tuning again.
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